(ITS#8584) reloadhint for syncprov overlay should default to TRUE

[quanah@openldap.org]

Full_Name: Quanah Gibson-Mount
Version: 2.4.44
OS: N/A
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (47.208.148.26)


The "reloadhint" option for the syncprov overlay currently defaults to FALSE. 
However, the documentation clearly notes that you want to set it to true for any
release > 2.3.11.  Given that 2.3 has been obsolete for years and it has been
over 11 years since the release of 2.3.11, we should really fix the default
value, and note that it should be changed if and only if there is a consumer
running 2.3.11 or prior.